| 圆柱壳开孔补强结构的有限元分析 |
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| 引用本文： | 路智敏,赵利利. 圆柱壳开孔补强结构的有限元分析[J]. 内蒙古工业大学学报, 2007, 26(4): 308-311 |
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| 作者姓名： | 路智敏 赵利利 |
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| 作者单位： | 内蒙古工业大学化学工程学院 呼和浩特010051 |
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| 基金项目： | 内蒙古工业大学重点研究项目(Z1200515) |
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| 摘 要： | 使用ANSYS软件计算同一筒径,不同开孔直径壳体,共六个模型的应力集中系数.按等面积补强法计算出以上模型分别采用补强圈补强和厚壁接管补强各自的厚度,建立相应的模型,求出应力集中系数.有限元的分析方法可以证明:在局部区域内产生较大的塑性变形时采用补强圈或厚壁接管补强,均可有效的改善孔边的应力集中,相同壳体直径,开相同大小的孔时,接管补强后的应力集中系数小于补强圈补强的应力集中系数.
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| 关 键 词： | 圆柱壳 开孔接管区 应力集中系数 有限元 |
| 文章编号： | 1001-5167（2007）04-0308-04 |
| 收稿时间： | 2007-05-21 |
FINITE ELEMENT ANALYSIS OF NOZZLE REINFORCEMENT STRUCTURE OF INTERNAL PRESSURE CYLINDER VESSEL |
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| LU Zhi-min,ZHAO Li-li. FINITE ELEMENT ANALYSIS OF NOZZLE REINFORCEMENT STRUCTURE OF INTERNAL PRESSURE CYLINDER VESSEL[J]. Journal of Inner Mongolia Polytechnic University(Social Sciences Edition), 2007, 26(4): 308-311 |
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| Authors: | LU Zhi-min ZHAO Li-li |
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| Abstract: | Stress concentration factors of six vessels with a same cylinder diameter and different nozzle diameters are calculated by use of ANSYS software.Equal area reinforcement method is applied and the thickness of compensative rings and compensative pipes for the vessels is calculated.Finite element models are constructed and the stress concentration factors are worked out.Finite element analysis proves that both compensative rings and compensative pipes can well reduce stress concentration around the nozzle.The stress concentration factor of a vessel reinforced with a compensative pipe is smaller than that of the other vessel reinforced with a compensative ring provided that the cylinder diameter of the two vessels is of the same size,as is their nozzle diameter. |
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| Keywords: | cylinder vessel vessel-nozzle junction stress concentration factor finite element |
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